Figure 4.

Endophyte infection upregulates phenylpropanoid biosynthesis. Graphs showing differences in anthocyanin and flavonoid levels, as determined by absorbance at 524 nm and 300 nm, respectively, between endophyte (Epichloë festucae)‐infected and uninfected perennial ryegrass plants. Bars represent mean ± SEM. Statistical significance was determined using an unpaired t‐test (*, 0.05 ≥ P > 0.01; **, 0.01 ≥ P > 0.001).